Natural Disasters and Weather Extremes

Earthquake Index, #4

The earthquake index value is calculated based on historical earthquake events data using USA.com algorithms. It is an indicator of the earthquake level in a region. A higher earthquake index value means a higher chance of an earthquake.

Earthquake

Volcano Index, #1

The volcano index value is calculated based on the currently known volcanoes using USA.com algorithms. It is an indicator of the possibility of a region being affected by a possible volcano eruption. A higher volcano index value means a higher chance of being affected.

Volcano

Tornado Index, #68

The tornado index value is calculated based on historical tornado events data using USA.com algorithms. It is an indicator of the tornado level in a region. A higher tornado index value means a higher chance of tornado events.

Tornade

Source: USA.com, http://www.usa.com/pottawatomie-county-ks-natural-disasters-extremes.htm (Retrieved July 2019)